Hohenbuehelia culmicola

Photo: Yves Deneyer

Back to the BAP list

Description

General: Small blackish-brown agaric with white gills and typically eccentric stem; solitary or in small trooping groups on culms of marram grass in shifting sand dunes.
Dimensions: Cap 1-2cm dia; stem 2-3cm tall x 0.7-1.2cm dia.
Cap: Blackish-brown sometimes with ochre tinges, kidney-shaped or convex, becoming more flattened; flesh: white, thin, fairly fragile.
Gills: White, adnate, fairly distant.
Stem: Brownish- black, velvety, more or less equal; ring absent.
Spores: Hyaline, smooth, ellipsoid, non-amyloid, 8-9 x 4-5 µm . Basidia 4 spored; cystidia thick walled, encrusted.
Odour: Not distinctive.
Taste: Not distinctive. Edible
Chemical Tests: None.
Occurrence: Autumn.

 

Qualifying criterion: 4.1: very rare species associated with very restricted habitat
Justification: restricted to shifting sand dunes that have become threatened over the last 50 years as these have been artificially stabilised
Threats: inappropriate coastal land management and expansion of recreational activities
Action Required: Survey and monitoring; protection against habitat loss and degradation; site liaison and management.

 

Statistics:

UK (excluding NI & CI) fungus records

 

Total records: 18

Earliest recording: 1974
Latest recording: 2006
Vice Counties and (frequency): 15(5); 28(2); 41(1) 44(4); 62(2); 82(4)
Pre-1960: 1 records
NBN Gateway grid map Post-1960: 17 records